This may just be a coincidence, but a friend of mine (who is a police officer) told me to do the following when pulled over and you would find yourself getting warnings more often than not:
1. Don't be an idiot when picking a spot to pull over. If there's no immediate safe place to pull over, cops don't mind trailing a bit until a safe location is found.
2. Once stopped, TURN OFF ENGINE and wait for officer to approach with both hands on the wheel.
3. When officer approaches window, then open window and follow instructions to get license and registration.
Isn't that what you're supposed to do anyway?
Common sense is so rare now it should be considered a super power.